ci: turns out 4GB is too small

reform2-imx8mq/mkimage.sh

@@ -17,8 +17,8 @@ sudo ./mkuserland.sh
 # chroot into the userland and build custom packages (mesa, xserver...)
 sudo ./mkuserland2.sh
 
-# create ext4 partition from target root directory directly at 4MiB offset, 4096MiB image size
-sudo /sbin/mke2fs -v -L 'MNTREFORM' -N 0 -O 64bit -E offset=4194304 -d target-userland -m 5 -r 1 -t ext4 reform-system.img 4092M
+# create ext4 partition from target root directory directly at 4MiB offset, 8192MiB (8GiB) image size
+sudo /sbin/mke2fs -v -L 'MNTREFORM' -N 0 -O 64bit -E offset=4194304 -d target-userland -m 5 -r 1 -t ext4 reform-system.img 8188M
 
 sudo /sbin/parted -s reform-system.img "mklabel msdos"
 sudo /sbin/parted -s reform-system.img "mkpart primary ext4 4MiB -1"